Warning: Error establishing mySQL database connection. Correct user/password? Correct hostname? Database server running? in /var/www/gruppo36mat-ant/common/class/ezsql/mysql/ez_sql_mysql.php on line 84

Warning: mySQL database connection is not active in /var/www/gruppo36mat-ant/common/class/ezsql/mysql/ez_sql_mysql.php on line 116
Output has already been sent to the browser at /var/www/gruppo36mat-ant/common/class/ezsql/mysql/ez_sql_mysql.php:84. Please make sure the command $xajax->processRequest() is placed before this.